Mantle mounting



y 5, 1956 c. BRAMMING 2,745,272

MANTLE MOUNTING Filed June 11, 1953 2 Sheets-Sheet l IN V EN TOR.

ATTORNEYS.

May 15, 1956 c. BRAMMING 2,745,272

MANTLE MOUNTING Filed June 11, 1953 2 Sheets-Sheet 2 IN V EN TOR.

ATTORNEYS.

United States Patent MANTLE MOUNTING Carl Bramming, Nashville, Tenn.,assignor to Aladdin Application June 11, 1953, Serial No. 361,025

6 Claims. (CI. 67-38) This invention relates to hydrocarbon illuminatingdevices and more specifically to lamps employing a mantle which isheated by a controlled flame to incandescence to provide light.

One of the continuing problems faced by manufacturers of mantle lamps isthe provision of a mantle mounting device which will perform thefunction of centering the incandescent mantle without distorting orcorroding at an uneconomical rate. The mantle mounting must additionallybe inexpensive and easy to manufacture.

It has been found advisable to provide a mantle mounting with each newmantle purchased so that when the mantle is renewed periodically themantle mounting ring is also renewed. This makes it possible to form themantle mounting ring of thinner, cheaper material, such as sheet steel,which is not as resistant to corrosion and erosion as is a material suchas brass, but which, in the light weight in which it is used, is veryresistant to heat transfer from the adjacent flame to the burner basket.

Moreover, it is desirable to reduce the amount of heat transfer from themantle mounting to components of the burner, which is accomplished inaccordance with the present invention by eliminating one-half of theflange which normally rests on the burner cone and by bending the partsthus eliminated downwardly to constitute complementary portions of thebaffle which control the flow of outer air to the wick. In this mannerthe edges of the partial flanges may be utilized as locking componentswhich engage lugs on the burner cone or on a burner basket and thedownwardly bent skirt portions become useful adjuncts in the centeringof the mounting.

Another vital advantage of the new mounting with the depending flange orskirt portions which make contact with portions of the baflle is that ofkeeping the burner cone and the battle aligned. Owing to the high heat,the burner cone or the bafiie frequently warps so that one is not inproper alignment with respect to the other. That results in inefliciencyof the burner. The new mantle mounting which is in engagement with both,the burner cone and the baflie, is capable, in addition to its othervaluable functions, of acting as a brace between cone and baflle,thereby preventing warping. If warping does take place, a new mountingcan be effective in realigning the warped parts.

Accordingly, it is an object of the invention to provide a mantlemounting which complements parts of a hydrocarbon burner of the wicktype in a manner to reduce the amount of material used whilesimultaneously reducing the heat conduction from the mounting to theburner and to utilize the structural advantages obtained by cutting downthe material to provide a locking means to secure the mounting on thecone and a centering means which also complements the bafile controllingthe air flow.

A further object is to provide a mantle mounting ring designed forcooperative engagement in a burner cone in such a manner as to permitthe mantle mounting to complete a portion of the structure of the burnercone.

2,745,272 Patented May 15, 1956 A further object is to provide a mantlemounting which may be employed on older forms of burner heads andgalleries as well as the newer more simplified types,

Further objects and advantages of this invention will be apparent fromthe consideration of the following specification in connection with theaccompanying drawings, in which:

Fig. l is a view in perspective of the mantle mounting ring and harp,

Fig. 2 is a plan view of the mantle mounting ring,

Fig. 3 is a view in section on the line 33 of Fig. 2 with the mantlemounting ring positioned on a new type burner cone,

Fig. 4 is a view in section on line 44 of Fig. 2 with the mantlemounting ring positioned on a burner cone of the older type,

Fig. 5 is a plan view of the burner cone of Fig. 3, and

Fig. 6 is a plan view of the burner cone of Fig. 4.

The mantle mounting plate 10 has an annular downwardly opening cupportion near its center formed with a flat base 11 and a substantiallyvertical annular wall 12. inwardly from the base portion 11 thesubstantially vertical wall 13 terminates in a horizontal flange 14 thesize of which partly determines the volume of air which is introduced tothe inside of the mantle. It will be appreciated that the cup formed bythe walls 12 and 13 and the base 11 is annular and that in operation themantle, not shown, nests around the outside of the Wall 12.

Formed outside of the wall 12 is a pair of arcuate channel portionshaving a base 15 and an outside arcuate wall 16. These arcuate channelportions or wells embrace the outside of the mantle in the operativeposition.

The wall 16 extends upwardly into a horizontal portion 17 and a furthervertical portion 18 which supports the ear 19. The diametricallyopposite ears 19 support vertical walls 20 in which are formed thepartial sleeves 21, each of which embraces one of the arms 22 of theharp 23. The upper horizontal arm of the harp 23 iricludes the crankyoke 24, from the center of which the mantle is hung in operativeposition so that its lower edge extends adjacent the portion 15 of themantle mounting base plate and between the end walls 12 and 16.

In the angular intervals between the upturned walls 16, the mantlemounting base 10 is formed downwardly at a point slightly below thechannel bottom 15 to form a pair of diametrically opposite downturned ordepending flanges 25, each extending for an angular distance in excessof As will appear later, these downwardly extending flanges 25 cooperatefunctionally with the structure of the new burner cone, as shown in Fig.3, and, in case of installation with the older type burner cone, asshown in Fig, 4, the flanges 25 nest around the burner baifle withoutinterfering with the operation of the burner.

In Fig. 3, the new mantle mounting is shown in operative position on anewer type simplified burner cone. In that structure the burner 26 isshown as being formed with a baifle 27 having a plurality of apertures28 through which air is supplied to the wick. The baffle 27 supports theinner frusto-conical portion 29 the function of which is to channel theair'in such a manner as to most efliciently direct it against the wick,thereby providing complete combustion and, therefore, a blue flame.

The upper burner cone 30 is formed with an inner aperture at 31 and apair of downwardly diametrically opposite extending inner flanges 32,extending from the upper surface 33 of the cone 30.

In the assembled condition, the mantle mounting 10 is positioned so thatthe lower annular surface 15 is supported by the upper annular surface33 of the burner cone 30. The flanges 25 are initially placed inside theaperture 31 adjacent the downwardly extending flanges 32 and resting onthe horizontal flange 34. Because the aperture 31 is not circular, andbecause the top 33 extcndsradially inwardly in places other than wherethe flanges 32 are situated, the mantle mounting is locked into positionby being rotated relative to the burner cone 30. The shoulder '35 fitsunder the top 33 thereby locking the mantle. mounting plate '10 intoposition.

It will beappreciated that the downwardly extending flanges .25 bridgeor cover the angular gaps between the flanges 32 and hence complementthe flanges 32 in com-' pleting the air passage to the inside of themantle.

As shown in Fig. 4, the mantle mounting 16 may also be assembled withthe older type gallery. There the lower baffle 36 and the upper baflfle37 are supported in spaced relationship to the perforated burner cone38. The upper surface 39 of the burner cone 38 is an annulus whichslopes inwardly towards a short vertical wall 49 which terminates in ahorizontal flange 41 which in turn defines the upper aperture 42. Inposition, the partial annular wall 16 of the mantle mounting base 10fits insidethe flange 41 in the aperture 42, the horizontal wall 17being supported on the flange 41. The wall 12 fits, on its inside edge,the upper portion of the batfle 37. The downwardly extending flange isdisplaced radially sufliciently so that it nests around the wide portion43 of the baffle 37. The mantle in its operative position will liebetween the wall 12 and the wall 16 for almost half of the circumferenceof the mantle mounting base 10 and between the Wall 12 and the flange 41in slightly more than half of the circumference of the mantle mounting10. I

Having. described my invention, what I claim as new and desire toprotect by Letters Patent is:

l. A mounting for a mantle for an incandescent lamp comprising anupstanding annular wall adapted to be received within a mantle, a pairof upstanding arcuate walls of greater radius than said inner wall andconnected thereto for partially embracing the outside of a mantle, apair of cars positioned outwardly from the arcuate walls, a harpsupported on said ears and adapted to support a mantle, and a pair ofdownwardly turned depending flanges formed on said inner'wall in theangular intervals between said annular walls and adapted to meet withcomplementary downwardly extending flanges in a burner cone to form anair passage.

2. In a mantle mounting in which a mantle-supporting harp is mounted ona pair of sidewardly extending ears, the provision of mantle-positioningand air-directiug means comprising an upstanding annular inner wall, apair of upstanding arcuate outer walls, the arcuate walls and the innerwall being connected by a pair of bottom walls and together defining apair of mantle-receiving channels, and a pair of downwardly extendingflanges positioned between said pair of arcuate outer walls andsupported from said inner wall, said pair of flanges being adapted tomeet with downwardly extending complementary flanges in a burner cone toform an air passage.

3. In a mantle mounting in which a mantle-supporting harp is mounted ina pair of partial sleeve members formed on a pair of sidewardlyextending ears, the provision of mantle-positioning and air directingmeans comprising an annular inner wall, a pair of arcuate outer walls, apair of arcuate channel bottom elements connecting together said outerand inner walls and together defining a pair of mantle-receivingchannels, a pair of arcuate retainer shoulders formed between said pairof arcuate outer walls and below the level of'said annular channelbottom elements, and a pair of downwardly extending flangessdependingfrom said pair of arcuate retainer shoulders, said-pair of flanges beingadapted to meet with downwardly extending complementary flanges in: aburner'cone'toform an air passage.

4. In a burner for a mantle lamp, the combination comprising an outerburner cone havin gan inwardly projecting generally radial annularflange, a pair of downturned diametrically opposite arcuate flangesdepending to define arcuate channels-for receiving thelower edge of tehmantle, said bottom wall elements being engageable with the upper sideof said inwardly projecting flange of said cone, a pair of diametricallyopposite shoulder 7 elements extending outwardly from said inner wallbetween said bottom wall elements and below the level thereof formovement under said inwardly projecting flange to lock said mantlemounting ring to said cone,

and a pair of dowuturned flanges depending from said.

shoulder elements for engagement with the inner sides. of saiddowuturned flanges on'said cone to vbridge said angular openingstherebetween and thereby define therewith a complete annular ba'flieflange.

5. A mantle mounting for use with a mantle lamp burner cone having aninwardly projecting generally radial flange formed with. a pair ofdowuturned diametricallyopposite arcuate flanges with angular op'en-'ings therebetween, said mantle mounting comprising,

in combination, an upstanding annular inner wall for receiving the loweredge of a mantle therearound, a pair of diametrically oppositeupstanding arcuate wall elements spaced outwardly from said inner wall,a mantle supporting harp mounted on said arcuate wall elements, bottomwall elements connecting the lower edges of said arcuate elements withthe lower edge of said inner wall to define arcuate channels forreceiving the lower edge of the mantle, said bottom wall elementsbeingengageable with the upper side of the inwardly projecting flange onthe cone, a pair of diametrically opposite shoulder elements extendingoutwardly from said inner wall between said bottom wall elements andbelow the level thereof for movement under the inwardly projecting.

flange to lock the mantle mounting to the cone, and a pair of dowuturnedflanges depending from said shoulder elements for engagement with theinner sides of the downturned flanges on the cone to bridge the angularopenings therebetween and thereby define therewith a complete annularbaflle flange.

6. A dual purpose mantle mounting for use either on a first burnerhaving an outer cone formed with an inwardly projecting generally radialflange with a pair of downturned diametrically opposite arcuate flangesand angular openings thereb'etweeen or with a second burner providedwith an annular battle and an outer cone with'an inwardly projectingflange element generally opposite from the upper end of thebaffle, saidmantle mounting comprising, in combination, an upstanding annular innerwall for receiving the lower edge of a mantle therearound, a pair ofdiametrically.opposite upstanding arcuate wall elements spaced outwardlyfrom said inner wall, a mantle supporting harp mounted on said arcuatewall elements, bottom wall elements-connecting the lower edges of saidarcuate elements with the lower edge of said inner wall to definearcuate channels for supporting the lower edge of the mantle, saidbottom wall elements being engageable with the upper side of saidinwardly projecting flange on the first burner,

said bottom wall elements being adapted to be inserted between thebaffle and the inwardly projecting flange element on the second burnerwith said inner wall and said arcuate elements engaging the baflie andthe flange elements, a pair of diametrically opposite shoulder elementsextending outwardly from said inner wall between. said bottom wallelements and below the level thereof, said shoulder elements beingadapted to be moved under the inwardly projecting flange of the firstburner between the downturned flanges to lock the mantle mounting to thefirst burner, and a of downturned flanges depending from said shoulderelements for engagement with the inner sides of the downturned flangeson the first burner to bridge the angular openings therebetween andthereby define therewith a complete annular bafile flange, saiddownturned flanges on said mantle mounting being adapted to betelescoped over the annular baffle on the second vburner to maintain thebaflle in centered relation to the flange element on the second burner.

References Cited in the file of this patent UNITED STATES PATENTS

